Tami Hansbrough, the mother of Tyler Hansbrough, has been placed on administrative leave by the University of North Carolina while the school investigates her role in an expense account scandal.

Matt Kupec, a former UNC quarterback, has resigned his position as the school’s chief fundraiser amid the investigation. Hansbrough, who is divorced from Tyler’s father, worked as a major gifts officer for the school. She and Kupec, who are romantically involved, took multiple personal trips on the school’s expense report, including trips to see Ben Hansbrough, Tyler’s younger brother, play for Notre Dame.

“Last night I told Matt what I had been finding and I was going to have to do a thorough investigation of his travel, and he offered his resignation,” university chancellor Holden Thorp told the Raleigh News & Observer. “It was difficult because Matt has been such a great person for the university and has raised billions of dollars for us, but I had to share with him what we had been finding and it didn’t look good and that it’s likely that this sort of personally driven travel was unacceptable, and we are going to need to do a pretty thorough investigation of it.”

Kupec and Hansbrough declined comment. Hansbrough was hired by the university during Tyler’s senior season, first as a fundraiser for the dental school and then becoming a major gifts officer earning $95,000. Kupec, who separated from his wife in 2009 and divorced two years later, earned a $349,800 annual salary.

The travel discrepancies came up as part of the university’s investigation into an academic scandal involving dozens of football players and at least one basketball player.